module Same_witness_exn_2: functor (A : S2) -> functor (B : S2) -> sig .. end
functor (
A
:
S2
) ->
B
sig
end
type t = {
eq : 'a 'b. (('a, 'b) A.t, ('a, 'b) B.t) Type_equal.t;
'a 'b. (('a, 'b) A.t, ('a, 'b) B.t) Type_equal.t
val witness : t
t